Short terms effects of air pollution from biomass burning in mucociliary clearance of Brazilian sugarcane cutters


Autoria(s): Ferreira-Ceccato, Aline Duarte; Cipulo Ramos, Ercy Mara; Soares de Carvalho, Luiz Carlos; Xavier, Rafaella Fagundes; de Souza Teixeira, Marcos Fernando; Raymundo-Pereira, Paulo Augusto; Proenca, Camila dos Anjos; de Toledo, Alessandra Choqueta; Ramos, Dionei
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/11/2011

Resumo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Nasal mucociliary system is the first line of defense of the upper airways and may be affected acutely by exposure to particulate matter (PM) from biomass burning. Several epidemiologic studies have demonstrated a consistent association between levels of air pollution from biomass burning with increases in hospitalization for respiratory diseases and mortality. To determine the acute effects of exposure to particulate matter from biomass burning in nasal mucociliary transport by saccharin transit time (STT) test, we studied thirty-three non-smokers and twelve light smokers sugarcane cutters in two periods: pre-harvest season and 4 h after harvest at the first day after biomass burning. Lung function, exhaled carbon monoxide (CO), nasal symptoms questionnaire and mucociliary clearance (MC) were assessed. Exhaled CO was increased in smokers compared to non-smokers but did not change significantly after harvest. In contrast, SIT was similar between smokers and non-smokers and decreased significantly after harvest in both groups (p < 0.001). Exposure to PM from biomass burning did not influence nasal symptoms. Our results suggest that acute exposure to particulate matter from sugarcane burned affects mucociliary clearance in smokers and non-smokers workers in the absence of symptoms. (C) 2011 Elsevier Ltd. All rights reserved.

Formato

1766-1768

Identificador

http://dx.doi.org/10.1016/j.rmed.2011.08.003

Respiratory Medicine. London: W B Saunders Co Ltd, v. 105, n. 11, p. 1766-1768, 2011.

0954-6111

http://hdl.handle.net/11449/6974

10.1016/j.rmed.2011.08.003

WOS:000295663600026

WOS000295663600026.pdf

Idioma(s)

eng

Publicador

W B Saunders Co Ltd

Relação

Respiratory Medicine

Direitos

openAccess

Palavras-Chave #Sugarcane #Mucociliary transport #Biomass #Nasal epithelium
Tipo

info:eu-repo/semantics/article